Improvement in rollers foe pulverizing soil aid clods



J. CUSTER Land-Roller.

Patenfed Mar. 26, 1867.

AM.PHOTO-LITHD. 80. NY. (OSBDRNE'S PROCE$SJ gjiniteh gimme ljgstritt IMPROVEMENT IN ROLLERS EOB PULVERIZING S OIL AND OLODS.

fills Sunni-1e month is lit flirts Zhtlett intent mu nmlriuggnt 11f flgt same.

TO ALL WHOM IT MAY CONCERN:

Be it known that 1, JOHN CUSTER, of Corsica, in the county of Morrow, and State of ()hio, have invented certain new and useful improvements on Machine for Crushing and Pulverizing Olods of Earth; and I do hereby declare that the following is a full, clean, and exact description thereof, which will enable those skilled in the atria to make and use the some, reference being had to the ncompunying drawings, forming part of this specification, in which--- Figure 1 is a section of my improved crushing and pulverizing muchine, tulienin the line a: :12, fig. 1.

Figure 2 is a top view of the same.

I Similar letters of reference indicate corresponding ports.

This invention relates to improvements in u machine for crushing end pulverizing clods of earth after the ground has been ploughed, for which Letters Patent were granted to me, dated the 26th day of June, 1866. The improvements consist in the manner of forming and securing the circular cutters upon the rollers, and of forming and connecting the cleaners or scrupersbetween the cutters. In all other respects the machine is constructed as described in the patent aforesaid, and the objects and operation of the invention are the same.

A represents a rectangular frame, and B the drought-pole attached thereto; C is a shaft which passes transversely through the frame A, and carries two rollers, D D, upon which the cutters s s are placed. These cutters are formed of flat iron orsteel annular plates, or single rings, which may be made about one inch wide at the base, and two or more inches in depth or height from the periphery. of the rollers; and they are placed equidistant thereon, three or four inches apart. Instead of making the cutters s s in sections, secured to the rollers by flanges and bolts, ts-in my potent aforesaid, they are made in one piece having four or more projections, a (t,'0n the base or inner side, WhlCh'fii into corresponding grooves, ee, made longitudinally on the periphery of the rollers D, as shoivn'in fig. l, in end upon which they are firmly held in place by keys or Wedgeblocks, 'Z 6, also fitted and fastened in the grooves e e, on the rollers between the cutters s s, as shown clearly in fig. 2. The ring-cutters 3s, thus formed in one piece, have the advantage of a continuous knife-edge without the breaks that are apt to occur when made in sections. This continuity of the edge renders the cutters more eiiective and facile in their operation, while their construction and the mode of securing them to the rollers are very simple and cheap. Instead of hinged cleaners mode of notched or serrated metal plates, as in lily-patent aforesaid, under the cross-bar F, and at the rear of the frame A, I place a long strip of metal plate so bent or corrugated that the corrugations or volutes, c 0, thereof, shell, on one side, occupy the space between the ring cutters s s, and their thin sides and edges shall lie so close to them as to perform perfectly the oiiice of scrapers to clear owuysll adhering earth at every revolution of the rollers. With this form of the scrapers" the earth cannot accumulate and clog on the thin edgesnnd sides of the cleaners orscrapers, us it will against plates with serrated edges presenting their fiat sides to the earth, but will pass freely through the open spa-ces in the volutes 0 c, as soon as it is scraped off of the cutters s a. The corrugated metal strip is fastened to the bur F by screws at the bottom of ouch corrugutionopposite the edge of the cutters s s, as shown in fig. 2.

Having thus described my invention, What I claim as next, and desire to secure by Letters Patent, is-- 1. The continuous single-ring cutters c s, secured by projections a a, in grooves e e, upon the periphery of the rollers D D,.arr:inged as and for the purposes herein described.

2. The cleztners'or scrapers formed of e corrugated metal plate secured to the cross-bar F, ivith the corrugations or volutes c c, placed between the cuttters s s in the manner and for the purpose herein described.

" JOHN GUSTER.

Witnesses:

Jiicon .L. DAY, DANIEL Cus'rnn. 

